Bests & Worsts Reviews from Amazon

Ok, there are two things you need to know in order to have this work: 1. You MUST have a lens that has adjustable aperture. Newer Nikon lenses that a "G" lenses, will be stuck on F22 aperture making it difficult to see anything through the lens. If you don't have a lens that has an adjustable aperture, do not buy this product. 2. You MUST set your camera to manual "M" mode. Otherwise you will get an error message because without electrical contacts, your camera doesn't realize that there is a lens on it. If you don't know how to use manual mode and don't want to learn, do not buy this product. It is also good to note, there is a silver button on the side and to remove the extension tube from your camera, you must pull it back towards the camera, then rotate and remove. Much easier than breaking it off. The negative reviews are laughable since most are user error/misunderstanding. For under 10 bucks, this is metal construction (not plastic) and is a nice way to get into playing around with macro photography. Just a side note, I use this with a D90 and my 50mm AF-D (can not use with the AF-S since it doesn't have an aperture ring) and my 80-200mm AF-D. The 80-200 is a huge lens an a little difficult since the lens is very front weighted, but gives a little more distance from the subject. The 50mm focus point is about 8" from the lens, the 80-200mm is about 24" from the lens at 200mm.